(VIN: -039999) Trionic T7 V6 OBD II (B308E)

P0453
EVAP Tank Pressure Sensor Circuit. Open / Short to B+

Fault symptoms
- CHECK ENGINE.

On-Board Diagnostics
Type of diagnosis:
- Continuous. But interrupted when fault criteria fulfilled and does not restart until next driving cycle

Enable conditions:
- General conditions for this trouble code: When starting the engine, the atmospheric pressure must exceed 78 kPa and the engine coolant and intake air temperatures must exceed -7°C.
- Engine running.

Fault criteria:
- Voltage higher than 4.950 V for more than 5 S.

Dependents:
- None.

System reaction to a fault:
- Integrity diagnosis of purge system blocked.

OK report:
- Diagnoses for P1451, P1452 and P1453 performed once and fault criteria not fulfilled. Fault criteria for P0452 or P0453 not fulfilled.

Fault handling: See "Fault diagnosis, general" for more information.
- Type III.

Diagnostic help
Fault diagnosis concerns an electrical fault in connecting leads or in the sensor.
Functions in the diagnostic tool related to the fault:
- Diagnostic status for the diagnosis.

Pressure sensor value, unit kPa. The value should be about 0 kPa when the filler cap is removed.
See also the description of readings in "Fault diagnosis, general" for more information.

Checking the wiring
Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Observe the multimeter, diagnostic tool or test lamp during the check.